Method of making a spray nozzle



L. C. GORDON METHOD OF MAKING A SPRAY NOZZLE Oct. 30, 1934.

2 Sheets-Sheet 1 Filed Dec. 25. 1932 Oct. 30, 1934. GQRDQN 1,979,104

METHOD OF MAKING A SPRAY NOZZLE Filed Dec. 23. 1952 2 Sheets-Sheet 2Patented Oct. 30, 1934 UNETED STATES PATENT oFrIcE 8 Claims.

This method consists in making a spray nozzle to provide a means ofgiving a uniform flow of liquid through the nozzle when the same isfinished.

A feature of the method resides in a simple and economical means offorming a chamber for liquid by drawing or forming a shell of suitablematerial, into the desired shape, placing in one end a nipple which hasbeen formed cor- 10 rugated on one end to receive a flexible rubber hoseor the like, and internally threading the other end which extends intothe chamber which forms the shell of the nozzle.

The open end of the shell receives a Washer like member which has beendied-out of sheet material having a cross sectional thickness of thedesired degree and which after being died-out is trued in a die to makethe same perfectly round so that it will fit perfectly in the open endof the shell, anchoring the washer in a suitable manner. The washerforms a valve seat for the spray nozzle.

It is a feature in the method to use the center portion punched out informing the washer to act as the disc valve of the nozzle which is truedand expanded in dies in the different steps of the method and is formedwith a tapered peripheral edge and anchored to a threaded stud.

A further step in the method is the forming of fine, transverseperipheral grooves by placing the disc valve within a peculiarly formeddie having a series of piano-like Wires replaceably held in and forminga part of the die, which literally presses the grooves into theperipheral beveled surface of the disc before and after plating so thatthe disc valve is formed true with a series of uniformly formedtransverse fine grooves extending across the bevel surface of the same.

Thus the steps of operation in the forming of the spray nozzle by mymethod may be considered as follows: A shell is first formed or moldedout of suitable material into the desired shape. A hose receiving nozzleis anchored in one end of the shell and is formed with an internalthread to receive the stud of the disc valve of the nozzle. The shell isprovided with a trued ring-like washer punched out of thick flat stockof metal or suitable material, and the center portion punched out inmaking the wash- 50 er is used as a disc valve by expanding the sameannularly on one side in a swedging die which forms a bevel peripheralface to the disc valve, after which this valve is formed with a seriesof transverse grooves which are pressed into the 55 peripheral beveledsurface of the valve, and a suitable threaded stud is axially anchoredto this valve. After the disc valve and stud are plated, they arereturned to the grooving die to make all of the grooves in the beveledperipheral face thereof true and clean. Thus when the valve is screwedinto the nipple supported in the shell, the beveled edge of the valvewill come intoengagement with the true right-angular edge of the washerfrom which the disc valve was originally punched and which forms theseat for the disc valve. The disc valve is moved by rotation toward oraway from the right-angular edge of the ring-like seat to regulate thefiow of liquid through the nozzle.

Thus I provide a method of making a spray nozzle in a very simple andeconomical manner, the valve of which may be adjusted to give thedesired flow of liquid through the same and directing the sprays ofliquid in accordance with the setting of the valve.

The invention includes the spray nozzle of the character set forthwherein a hollow shell is formed with a hose receiving nipple projectingfrom one end, a rigid washer-like ring being anchored in the flared endto form a true valve seat, and a disc-like adjustable valve with finetransverse grooves is held in the hollow shell, adjustable to give thedesired flow of liquid from the spray.

A feature of the method of making the spray 85 nozzle resides in forcingthe disc valve which is formed with peripheral grooves into the grooveforming die as a finishing operation in a manner to force the disc valvethrough the die; causing the grooves formed by the die to be cleaned outin this finishing operation and having a greater depth adjacent theouter face of the disc valve than at the inner face.

The features and details will be more fully hereinafter set forth aswell as the different 95 steps of the method in forming the spraynozzle.

The drawings are for the purpose of illustrating the spray nozzle in itsfinished form and the different steps of operation in the makingthereof.

Figure 1 is a perspective of the finished nozzle, showing a portion ofrubber hose connected therewith to connect the nozzle with a source offluid supply.

Figure 2 illustrates a cross section of the bellshaped shell.

Figure 3 illustrates the first operation, showing a disc punched fromfiat heavy gage metal or material.

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the same.

Figure 4 illustrates the next step in the method of forming the valveseat and valve.

Figure 5 illustrates the disc valve with a threaded stud anchoredthereto.

Figure 6 illustrates a section of the valve, showing its beveledperipheral formation after the disc has been expanded in an expandingdie.

Figure '7 illustrates a perspective of the die for forming thetransverse fine slots in the beveled peripheral edge of the disc valve.

Figure 8 is an enlarged sectional detail of a portion of the die shownin Figure '7.

Figure 9 is an end View of the disc valve after the step of operationwhich forms the grooves in the peripheral edge thereof has'taken place.

Figure 10 illustrates the tubing Irom which the nipple of the nozzle isformed.

Figure 11 illustrates the nipple lee-tore it is anchored in the shell.

Figure 12 is a cross section through the finished .spray nozzle.

Figure 13 illustrates the nozzle used as a lawn spray when it isdesired.

My method of making ;a spray nozzle is car .ried out .by forming ormolding the shell :10 into the desired shape or term. When this shell is.formed from metal the wall thereof may be be later defined.

The shell 10 when made of metal is preferably formed Withan ofisetportion 11 which is adapted to receive the member which forms the valveseat in the spray and the outer edge of the same may be rounded .at :12to strengthen and finish The tonmation \of the .shell .l-G is the firststep of the method.

The next step of the method is to punch out the disc 1 3 of aheavy gagemetal tor other suitable material. The next step .follows by *=punch ingtrom the disc 13 a smaller disc .14 which leaves :the ring orwasher-like member 15, as a result of punching the disc 14 from the disc13. In punching the disc 1. 1 from the disc i3 which leaves the ring15., an axial hole 16 may be formed.

The method .follows by anchoring the thread- -ed:stud 157 .in theopening 16 :of the disc 14 and also in .swedging the ringelilse marginalgroove 18 in the outer .face of the .disc 14 which riorms theperipheraledge l9 beveled as illustrated by the section in Figure .6.The threaded stud 17 may be secured rigidly .to the disc .14 in .any.suitable manner. When the disc 14 is formed of metal the stud 1''? maybe sweat .ati2'0 to the disc 14. A suitable slot 21 *is formed in theouter end of the-stud 17 to receive a screw driver or other instrumentfor operating the disc 14 and the stud 1'7 when it is desired.

The method follows by forcing the disc 14 into the die -A which isformed with an inner v beveled surface "2 2 commensurate with the bevelof the peripheral edge 19. The die A is provided a series of fine wires'23 extending across the beveled surface 122 of the die andhavingendsZZi anchored in the sidesiof the die. Each wire 23 is of aspring nature, like piano wire, :and is stormed in the shape illustratedin Figure 8. Each wire is easily removable or replaceable and theportion extending across the surface 22 fits into za slight groovemaintaining the wire die members 23 in, equal spaced apart relationwtoeach other. In the step of the method of placing the disc 14 into thedie A, fine transverse grooves 25 are formed in the beveled face 19 ofthe disc 14. completing the formation of the disc valve 14 which isadapted to be held adjustable in the nozzle B by the stud 17.

The method follows by placing the ring-like washer 15 into a truing dieto form the same perfectly round and this member 15 is then placed .intothe ofiset portion 11 and anchored or fixed therein in any suitablemanner. The ring-like washer member 15 forms a valve seat for the discvalve 14 and the inner opening of this member forms a right-angularvalve seat or surface toward or away from which the valve 14 .is rotatedin the setting of the nozzle B.

A step oi" the method includes the iorrnation oi the tubular nipple-Cwhich may be made from the tubing 26 by forming corrugations 27 in oneend of the same which are adapted to receive a hose member 28illustrated in Figure .1, and forming the other end of the nipple Cortube .26 with .an internal thread .29 and which is adapted to receivethe threaded end of the stud 1'7 of the valve 14. The nipple C formedwith openings .f.

5A) so that when the :hose 28 is connected onto the corrugations .27 ofthe nipple C and the stud 1'7 is screwed into the inner end or thet-nipple 6, liquid may come from the tube 28 be directed out of theopenings '39 into the chamber J 31 of the spray nozzle to direct theliquid toward the valve 14. The liquid is then caused to flow throughthe grooves .25 past the valve :14 of l'vhe nozzle to direct a finespray from the :nozzle B "when the same has been finished and the valve14 set :as desired.

Thus the nozzle B may be formed in a practical and economical manner toprovide :a spray nozzle of a character where an even and uniform fiow:of liquid may be directed from the valve .14 of the r' same. Whetherthe valve 14is made of metal or other suitable material and it is platedafter it has been formed with the transverse .groovesj25, it ispreferred to include-as one of the steps of the method of making thesame, the placing of the valve disc .14 back into and through the :die A:so .as to insure the uniform formation of the grooves 25 and slightlyincreasing the 'depthref the :grooves :25 adjacent the outer .face 'ofthe "valve, I have round by this method that each and every nozzle 9 isof the same true character and I am able to provide a spray nozzlehaving :afineness of manut'acture and finish wherein each nozzle willgive :a uniform spray of liquid therefrom and which will permit thespray nozzles to be made more economical than has been accomplishedhereto- .fore. :It is apparent that as the valve 14 is rotated thethreaded stud 17 will regulate the position of the valve "14 in relationto the right-angular seat 32 in the disc-like washer or ring member 15.

It is apparent that the spray nozzle B may be made-in part-or in itsentirety-of non-metallic ma terial where the various elements of thenozzle are formed by molding preferably under heavy pressure thesevarious elements, so that they are a suitable hose 33 which may be agarden hose, so that the spray nozzle B will form a lawn spray or thelike, to direct the water to the lawn as may be desired. The advantageof using this spray for a lawn is that the fine jets of water throughthe grooves 25 in the valve 14 and also out of fine openings 34 whichmay be drilled in the disc valve 14, is preferred, because the fine jetsof water are uniform and give a very desirable flow of water which doesnot injure the lawn or direct too large an amount of moisture from thenozzle. The valve 14 may be adjusted as heretofore set forth so that thespray may be regulated from the grooves 25. It is also apparent that ina spray nozzle B used as illustrated in Figure 13, that the beveledsurface 19 may be of a greater degree than that desired in the otherforms of the nozzle and it is also apparent that the valve seat in thewasher-like member 15 may be beveled to conform with the bevel of thesurface 19 of the valve 14. These variations do not change the method ofmaking the spray nozzle nor its operation. My method simplifies andreduces the cost of manufacture of spray nozzles of this character. Theoperations may be carried on as outlined in the various steps or may bevaried as may be desired to complete the finished spray nozzle and mayconsist namely, in the forming of a shell providing a hose receivingnipple in fixed relation with the shell, providing a valve seat of auniform defined character, providing a disc valve formed as a part ofthe material in the making of the valve seat including a valvesupporting stem threaded to adjust the valve in relation to the hosenipple, and providing defined accurate transverse grooves in theoperative surface of the valve. Variations apparent to those skilled inthe art are considered as within the scope and meaning of the invention.

I claim:

1. The method of making a spray nozzle consisting in forming a shell toprovide a hollow liquid receiving chamber, then forming a valve seat andanchoring the same in the shell, providing a valve, swedging a beveledsurface and transverse grooves in the same, anchoring a hose receivingnipple to the shell with a portion thereof extending into the chamber ofthe shell, and connecting the valve with the nipple so that rotation ofthe valve will adjust the same in relation to the seat.

2. The method of forming a spray nozzle consisting in forming a hollowshell with a tubular, corrugated, perforated and threaded nipple in oneend of the same, then forming a valve seat and valve by punching fromheavy gage material a disc and then punching another disc from the saiddisc, the second disc forming the valve, and the ring portion remainingthe valve seat, truing and anchoring the valve seat in the shell, thenswedging the valve to form a bevelled surface thereon, anchoring athreaded stud thereto, and swedging transverse grooves in the beveledsurface of the valve and adjusting the valve by threaded relation in thenipple to regulate the flow of liquid through the grooves of the valveto provide a nozzle with a uniform flow of fine sprays of liquidtherefrom.

3. The method of forming a spray nozzle consisting in forming a shell toprovide a hollow chamber therein, securing a tubular nipple with acorrugated end projecting from the shell, and a perforated and threadedend projecting within the shell, then forming a trued ring-like valveseat and anchoring it into the shell, then forming a disc-like valvewith an outer beveled edge and forming transverse grooves in the bevelededge by swedging the disc valve in a die formed with a series of wiremembers adapted to swedge the grooves in the valve, then anchoring athreaded stud to the disc valve by which the same is adjusted inrelation to the seat by threaded engagement with the tubular nippleanchored in the shell.

4. The method of forming a hollow spray nozzle consisting in forming ahollow shell from suitable material with a hollow nipple anchoredthereto and having an outer end adapted to connect with a hose, and aninner end perforated through which liquid may pass and threaded toreceive the threaded stud of a valve, then forming a trued valve seat tobe positioned in the shell opposite to the nipple by punching out aring, then forming the valve proper from the center punched out inmaking the valve seat, swedging the edge of the valve to bevel the same,and swedging transverse grooves in the valve and securing a stud theretoto support the valve in relation to the seat by threaded engagement withthe nipple anchored in the shell.

5. The method of forming a spray nozzle consisting in forming a hollowshell from suitable material with a hose receiving nipple anchoredtherein, and forming a valve seat and valve from a disc-like member, thevalve seat being formed in a ring-like member when the valve proper ispunched therefrom, trueing the ring-like valve and anchoring it in theshell, then swedging the valve with transverse grooves in the peripheraledge thereof, and securing a threaded stud to the valve to connect bythreaded engagement the valve and nipple for adjustment of the valve inthe nipple.

6. The method of forming a spray nozzle valve and seat comprisingpunching a concentric disc from a circular flat piece of metal to form aring 4 piece of metal to provide a ring and a disc, spreading onesurface of said disc to provide a tapered edge thereupon, and forcingsaid disc into a die to form grooves in the edge thereof.

8. The method of forming a spray nozzle valve and seat consisting informing a round flat metal blank, punching a concentric disc of metalfrom said blank to provide a disc and ring, swedging a groove in oneside of said disc to provide a tapered edge on said disc, and groovingsaid tapered edge.

LLOYD C. GORDON.

